CHICAGO – If Quinton “Rampage” Jackson is indeed done with the UFC, he’ll leave the octagon on a sour note.

Brazilian slugger Glover Teixeira outstruck and outwrestled Jackson over the course of 15 minutes en route to claiming a clearcut unanimous-decision win in the biggest victory of his career to date.

The bout was the co-main event of Saturday’s UFC on FOX 6 event at United Center in Chicago. It aired on FOX following prelims on FX and Facebook.

Jackson looked quick and lively to start the fight and showed promise of an impressive sendoff. However, one minute into the fight, Teixeira dropped for a single leg and quickly transitioned to Jackson’s back. With both hooks in, Teixeira looked to be incomplete control, but Jackson patiently pulled his opponent away and returned to the feet.

Both fighters fired powerful hooks on the feet, and Jackson mixed in a few low kicks in a weapon not seeing much in recent fights. Still, as the round wore on, Jackson seemed to tire. Teixeira defended a late takedown and scored with a crisp left, and it seemed momentum was entirely in his favor.

Teixeira dropped Jackson in the final minute, but “Rampage” climbed back to his feet and fired counter shots in the pocket that helped him survive until the bell.

Teixeira opened the second with another takedown and immediately set up in half-mount. A visibly frustrated Jackson still found a way to et back to his feet, and a series of uppercuts brought the crowd to life. Still, Teixeira walked through the blows and returned fire with his own heavy leather. A tired Jackson began to retreat and look to load up on big hooks an d uppercuts, but Teixeira simply walked forward with combinations.

Jackson started taunting his opponent in the final minute, apparently inviting him to come in with careless aggression. Teixeira didn’t bite, and the fight carried on to the third.

Jackson appeared energized to open the third, but Teixeira opted for a takedown one minute into the round. The crowd booed the strategy, and Teixeira eventually backed away and looked to trade again on the feet. Jackson continued to load up on his punches in the closing minutes of the fight, but Teixeira’s volume striking earned him points. Jackson was visibly fatigued in the final minute, and Teixeira simply cruised to a decision win, firing off power shots without opening himself to ay dangerous counters and also scoring another takedown at the end.

Teixeira (20-2 MMA, 3-0 UFC) now boasts an 18-fight win streak and is certainly in line for a big fight. Jackson (32-11 MMA, 7-5 UFC), who had never dropped consecutive fights before his current run, is now on a three-fight losing streak.

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